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Q. No.If the monochromatic source in Young's double slit experiment is replaced by white light, then:
1.
there will be a central dark fringe surrounded by a few coloured fringes.
2.
there will be a central bright white fringe surrounded by a few coloured fringes.
3.
all bright fringes will be of equal width.
4.
interference pattern will disappear.
Subtopic: Â Young's Double Slit Experiment |
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NEET - 2024
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An unpolarised light beam strikes a glass surface at Brewster's angle. Then:
| 1. | the refracted light will be completely polarised. |
| 2. | both the reflected and refracted light will be completely polarised. |
| 3. | the reflected light will be completely polarised but the refracted light will be partially polarised. |
| 4. | the reflected light will be partially polarised. |
Subtopic: Â Polarization of Light |
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From NCERT
NEET - 2024
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In Young's double slit experiment, if the wavelength of light used is increased (say from violet to red) then the:
| 1. | fringe width decreases. |
| 2. | fringe width increases. |
| 3. | central bright fringe becomes dark. |
| 4. | fringe width remains unaltered. |
Subtopic: Â Young's Double Slit Experiment |
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NEET - 2024
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If an unpolarised light is incident on a plane surface of refractive index \(\sqrt3\) at Brewster's angle then the angle of refractive is:
1. \(0^\circ\)
2. \(30^\circ\)
3. \(60^\circ\)
4. \(90^\circ\)
1. \(0^\circ\)
2. \(30^\circ\)
3. \(60^\circ\)
4. \(90^\circ\)
Subtopic: Â Polarization of Light |
From NCERT
NEET - 2024
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Two slits in Young's double slit experiment are \(1.5~\text{mm}\) apart and the screen is placed at a distance of \(1 ~\text m\) from the slits. If the wavelength of light used is \(600\times10^{-9}~\text {m}\) then the fringe separation is:
1. \(4\times10^{-5}~\text m\)
2. \(9\times10^{-8}~\text m\)
3. \(4\times10^{-7}~\text m\)
4. \(4\times10^{-4}~\text m\)
1. \(4\times10^{-5}~\text m\)
2. \(9\times10^{-8}~\text m\)
3. \(4\times10^{-7}~\text m\)
4. \(4\times10^{-4}~\text m\)
Subtopic: Â Young's Double Slit Experiment |
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From NCERT
NEET - 2024
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The interference pattern can be observed due to the superposition of the following waves:
A. \(y=a\sin\omega t\)
B. \(y=a\sin2\omega t\)
C. \(y=a\sin\left(\omega t-\phi\right)\)
D. \(y=a\sin3\omega t\)
Choose the correct answer from the options given below:
1. B and C
2. B and D
3. A and C
4. A and B
A. \(y=a\sin\omega t\)
B. \(y=a\sin2\omega t\)
C. \(y=a\sin\left(\omega t-\phi\right)\)
D. \(y=a\sin3\omega t\)
Choose the correct answer from the options given below:
1. B and C
2. B and D
3. A and C
4. A and B
Subtopic: Â Superposition Principle |
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From NCERT
NEET - 2024
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A beam of unpolarized light of intensity \(I_0\) is passed through a polaroid \(A,\) through another polaroid \(B,\) oriented at \(60^\circ\) and finally through another polaroid \(C,\) oriented at \(45^\circ\) relative to \(B\) as shown. The intensity of emergent light is:
1. \(\frac{{I}_0}{16}\)
2. \(\frac{{I}_0}4\)
3. \(\frac{{I}_0}2\)
4. \(\frac{{I}_0}{32}\)
1. \(\frac{{I}_0}{16}\)
2. \(\frac{{I}_0}4\)
3. \(\frac{{I}_0}2\)
4. \(\frac{{I}_0}{32}\)
Subtopic: Â Polarization of Light |
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From NCERT
NEET - 2024
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For Young's double-slit experiment, two statements are given below:
In the light of the above statements, choose the correct answer from the options given below:
| Statement I: | If screen is moved away from the plane of slits, angular separation of the fringes remains constant. |
| Statement Ii: | If the monochromatic source is replaced by another monochromatic source of larger wavelength, the angular separation of fringes decreases. |
In the light of the above statements, choose the correct answer from the options given below:
| 1. | Statement I is false but Statement II is true. |
| 2. | Both Statement I and Statement II are true. |
| 3. | Both Statement I and Statement II are false. |
| 4. | Statement I is true but Statement II is false. |
Subtopic: Â Young's Double Slit Experiment |
From NCERT
NEET - 2023
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If the screen is moved away from the plane of the slits in Young's double slit experiment, then the:
| 1. | angular separation of the fringes increases. |
| 2. | angular separation of the fringes decreases. |
| 3. | linear separation of the fringes increases. |
| 4. | linear separation of the fringes decreases. |
Subtopic: Â Young's Double Slit Experiment |
 63%
From NCERT
NEET - 2022
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After passing through a polarizer, a linearly polarized light of intensity \(I\) is incident on an analyser making an angle of \(30^\circ\) with the axes of the polariser. The intensity of light emitted from the analyser will be:
| 1. | \(\frac{I}{2}\) | 2. | \(\frac{I}{3}\) |
| 3. | \(\frac{3I}{4}\) | 4. | \(\frac{2I}{3}\) |
Subtopic: Â Polarization of Light |
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From NCERT
NEET - 2022
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